From Dragon Quest Wiki
Quest #155 - "Christinamas Cake"
Location Bloomingdale
Availability After Quest #152
Requested by Girl by the item shop.
Fulfilled to Girl by the item shop.
Item Required christmas cake
Reward Spirit bracer and Party popper
Detail Give a Christmas Cake to Santa.
Hint for solution Buy the Christmas Cake from the Wi-Fi shop and give it to Chris Cringle at Cringle Coast and report back to the girl.
Repeatable {{{repeat}}}